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LibUnicode+LibJS: Stop propagating small OOM errors from normalization

Browse source 
This API only perform small allocations, and is only used by LibJS.
This commit is contained in:
Timothy Flynn 2023-09-06 07:25:56 -04:00 committed by Tim Flynn
parent 331991f9c4
commit 02a8683266
Notes: sideshowbarker 2024-07-17 02:42:21 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/02a8683266
Pull-request: https://github.com/SerenityOS/serenity/pull/20972
Reviewed-by: https://github.com/awesomekling
4 changed files with 65 additions and 69 deletions
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86
Tests/LibUnicode/TestUnicodeNormalization.cpp
View file

@ -12,84 +12,84 @@ using namespace Unicode;
TEST_CASE(normalize_nfd)
{
EXPECT_EQ(MUST(normalize(""sv, NormalizationForm::NFD)), ""sv);
EXPECT_EQ(normalize(""sv, NormalizationForm::NFD), ""sv);
EXPECT_EQ(MUST(normalize("Hello"sv, NormalizationForm::NFD)), "Hello"sv);
EXPECT_EQ(normalize("Hello"sv, NormalizationForm::NFD), "Hello"sv);
EXPECT_EQ(MUST(normalize("Amélie"sv, NormalizationForm::NFD)), "Ame\u0301lie"sv);
EXPECT_EQ(normalize("Amélie"sv, NormalizationForm::NFD), "Ame\u0301lie"sv);
EXPECT_EQ(MUST(normalize("Office"sv, NormalizationForm::NFD)), "Office"sv);
EXPECT_EQ(normalize("Office"sv, NormalizationForm::NFD), "Office"sv);
EXPECT_EQ(MUST(normalize("\u1E9B\u0323"sv, NormalizationForm::NFD)), "\u017F\u0323\u0307"sv);
EXPECT_EQ(normalize("\u1E9B\u0323"sv, NormalizationForm::NFD), "\u017F\u0323\u0307"sv);
EXPECT_EQ(MUST(normalize("\u0112\u0300"sv, NormalizationForm::NFD)), "\u0045\u0304\u0300"sv);
EXPECT_EQ(normalize("\u0112\u0300"sv, NormalizationForm::NFD), "\u0045\u0304\u0300"sv);
EXPECT_EQ(MUST(normalize("\u03D3"sv, NormalizationForm::NFD)), "\u03D2\u0301"sv);
EXPECT_EQ(MUST(normalize("\u03D4"sv, NormalizationForm::NFD)), "\u03D2\u0308"sv);
EXPECT_EQ(normalize("\u03D3"sv, NormalizationForm::NFD), "\u03D2\u0301"sv);
EXPECT_EQ(normalize("\u03D4"sv, NormalizationForm::NFD), "\u03D2\u0308"sv);
EXPECT_EQ(MUST(normalize("닭"sv, NormalizationForm::NFD)), "\u1103\u1161\u11B0"sv);
EXPECT_EQ(MUST(normalize("\u1100\uAC00\u11A8"sv, NormalizationForm::NFD)), "\u1100\u1100\u1161\u11A8"sv);
EXPECT_EQ(normalize("닭"sv, NormalizationForm::NFD), "\u1103\u1161\u11B0"sv);
EXPECT_EQ(normalize("\u1100\uAC00\u11A8"sv, NormalizationForm::NFD), "\u1100\u1100\u1161\u11A8"sv);
// Composition exclusions.
EXPECT_EQ(MUST(normalize("\u0958"sv, NormalizationForm::NFD)), "\u0915\u093C"sv);
EXPECT_EQ(MUST(normalize("\u2126"sv, NormalizationForm::NFD)), "\u03A9"sv);
EXPECT_EQ(normalize("\u0958"sv, NormalizationForm::NFD), "\u0915\u093C"sv);
EXPECT_EQ(normalize("\u2126"sv, NormalizationForm::NFD), "\u03A9"sv);
}
TEST_CASE(normalize_nfc)
{
EXPECT_EQ(MUST(normalize(""sv, NormalizationForm::NFC)), ""sv);
EXPECT_EQ(normalize(""sv, NormalizationForm::NFC), ""sv);
EXPECT_EQ(MUST(normalize("Hello"sv, NormalizationForm::NFC)), "Hello"sv);
EXPECT_EQ(normalize("Hello"sv, NormalizationForm::NFC), "Hello"sv);
EXPECT_EQ(MUST(normalize("Office"sv, NormalizationForm::NFC)), "Office"sv);
EXPECT_EQ(normalize("Office"sv, NormalizationForm::NFC), "Office"sv);
EXPECT_EQ(MUST(normalize("\u1E9B\u0323"sv, NormalizationForm::NFC)), "\u1E9B\u0323"sv);
EXPECT_EQ(MUST(normalize("\u0044\u0307"sv, NormalizationForm::NFC)), "\u1E0A"sv);
EXPECT_EQ(normalize("\u1E9B\u0323"sv, NormalizationForm::NFC), "\u1E9B\u0323"sv);
EXPECT_EQ(normalize("\u0044\u0307"sv, NormalizationForm::NFC), "\u1E0A"sv);
EXPECT_EQ(MUST(normalize("\u0044\u0307\u0323"sv, NormalizationForm::NFC)), "\u1E0C\u0307"sv);
EXPECT_EQ(MUST(normalize("\u0044\u0323\u0307"sv, NormalizationForm::NFC)), "\u1E0C\u0307"sv);
EXPECT_EQ(normalize("\u0044\u0307\u0323"sv, NormalizationForm::NFC), "\u1E0C\u0307"sv);
EXPECT_EQ(normalize("\u0044\u0323\u0307"sv, NormalizationForm::NFC), "\u1E0C\u0307"sv);
EXPECT_EQ(MUST(normalize("\u0112\u0300"sv, NormalizationForm::NFC)), "\u1E14"sv);
EXPECT_EQ(MUST(normalize("\u1E14\u0304"sv, NormalizationForm::NFC)), "\u1E14\u0304"sv);
EXPECT_EQ(normalize("\u0112\u0300"sv, NormalizationForm::NFC), "\u1E14"sv);
EXPECT_EQ(normalize("\u1E14\u0304"sv, NormalizationForm::NFC), "\u1E14\u0304"sv);
EXPECT_EQ(MUST(normalize("\u05B8\u05B9\u05B1\u0591\u05C3\u05B0\u05AC\u059F"sv, NormalizationForm::NFC)), "\u05B1\u05B8\u05B9\u0591\u05C3\u05B0\u05AC\u059F"sv);
EXPECT_EQ(MUST(normalize("\u0592\u05B7\u05BC\u05A5\u05B0\u05C0\u05C4\u05AD"sv, NormalizationForm::NFC)), "\u05B0\u05B7\u05BC\u05A5\u0592\u05C0\u05AD\u05C4"sv);
EXPECT_EQ(normalize("\u05B8\u05B9\u05B1\u0591\u05C3\u05B0\u05AC\u059F"sv, NormalizationForm::NFC), "\u05B1\u05B8\u05B9\u0591\u05C3\u05B0\u05AC\u059F"sv);
EXPECT_EQ(normalize("\u0592\u05B7\u05BC\u05A5\u05B0\u05C0\u05C4\u05AD"sv, NormalizationForm::NFC), "\u05B0\u05B7\u05BC\u05A5\u0592\u05C0\u05AD\u05C4"sv);
EXPECT_EQ(MUST(normalize("\u03D3"sv, NormalizationForm::NFC)), "\u03D3"sv);
EXPECT_EQ(MUST(normalize("\u03D4"sv, NormalizationForm::NFC)), "\u03D4"sv);
EXPECT_EQ(normalize("\u03D3"sv, NormalizationForm::NFC), "\u03D3"sv);
EXPECT_EQ(normalize("\u03D4"sv, NormalizationForm::NFC), "\u03D4"sv);
EXPECT_EQ(MUST(normalize("\u0958"sv, NormalizationForm::NFC)), "\u0915\u093C"sv);
EXPECT_EQ(MUST(normalize("\u2126"sv, NormalizationForm::NFC)), "\u03A9"sv);
EXPECT_EQ(normalize("\u0958"sv, NormalizationForm::NFC), "\u0915\u093C"sv);
EXPECT_EQ(normalize("\u2126"sv, NormalizationForm::NFC), "\u03A9"sv);
EXPECT_EQ(MUST(normalize("\u1103\u1161\u11B0"sv, NormalizationForm::NFC)), "닭"sv);
EXPECT_EQ(MUST(normalize("\u1100\uAC00\u11A8"sv, NormalizationForm::NFC)), "\u1100\uAC01"sv);
EXPECT_EQ(MUST(normalize("\u1103\u1161\u11B0\u11B0"sv, NormalizationForm::NFC)), "닭\u11B0");
EXPECT_EQ(normalize("\u1103\u1161\u11B0"sv, NormalizationForm::NFC), "닭"sv);
EXPECT_EQ(normalize("\u1100\uAC00\u11A8"sv, NormalizationForm::NFC), "\u1100\uAC01"sv);
EXPECT_EQ(normalize("\u1103\u1161\u11B0\u11B0"sv, NormalizationForm::NFC), "닭\u11B0");
}
TEST_CASE(normalize_nfkd)
{
EXPECT_EQ(MUST(normalize(""sv, NormalizationForm::NFKD)), ""sv);
EXPECT_EQ(normalize(""sv, NormalizationForm::NFKD), ""sv);
EXPECT_EQ(MUST(normalize("Office"sv, NormalizationForm::NFKD)), "Office"sv);
EXPECT_EQ(normalize("Office"sv, NormalizationForm::NFKD), "Office"sv);
EXPECT_EQ(MUST(normalize("¼"sv, NormalizationForm::NFKD)), "1\u20444"sv);
EXPECT_EQ(normalize("¼"sv, NormalizationForm::NFKD), "1\u20444"sv);
EXPECT_EQ(MUST(normalize("\u03D3"sv, NormalizationForm::NFKD)), "\u03A5\u0301"sv);
EXPECT_EQ(MUST(normalize("\u03D4"sv, NormalizationForm::NFKD)), "\u03A5\u0308"sv);
EXPECT_EQ(normalize("\u03D3"sv, NormalizationForm::NFKD), "\u03A5\u0301"sv);
EXPECT_EQ(normalize("\u03D4"sv, NormalizationForm::NFKD), "\u03A5\u0308"sv);
EXPECT_EQ(MUST(normalize("\u0958"sv, NormalizationForm::NFKD)), "\u0915\u093C"sv);
EXPECT_EQ(MUST(normalize("\u2126"sv, NormalizationForm::NFKD)), "\u03A9"sv);
EXPECT_EQ(normalize("\u0958"sv, NormalizationForm::NFKD), "\u0915\u093C"sv);
EXPECT_EQ(normalize("\u2126"sv, NormalizationForm::NFKD), "\u03A9"sv);
EXPECT_EQ(MUST(normalize("\uFDFA"sv, NormalizationForm::NFKD)), "\u0635\u0644\u0649\u0020\u0627\u0644\u0644\u0647\u0020\u0639\u0644\u064A\u0647\u0020\u0648\u0633\u0644\u0645"sv);
EXPECT_EQ(normalize("\uFDFA"sv, NormalizationForm::NFKD), "\u0635\u0644\u0649\u0020\u0627\u0644\u0644\u0647\u0020\u0639\u0644\u064A\u0647\u0020\u0648\u0633\u0644\u0645"sv);
}
TEST_CASE(normalize_nfkc)
{
EXPECT_EQ(MUST(normalize(""sv, NormalizationForm::NFKC)), ""sv);
EXPECT_EQ(normalize(""sv, NormalizationForm::NFKC), ""sv);
EXPECT_EQ(MUST(normalize("\u03D3"sv, NormalizationForm::NFKC)), "\u038E"sv);
EXPECT_EQ(MUST(normalize("\u03D4"sv, NormalizationForm::NFKC)), "\u03AB"sv);
EXPECT_EQ(normalize("\u03D3"sv, NormalizationForm::NFKC), "\u038E"sv);
EXPECT_EQ(normalize("\u03D4"sv, NormalizationForm::NFKC), "\u03AB"sv);
EXPECT_EQ(MUST(normalize("\u0958"sv, NormalizationForm::NFKC)), "\u0915\u093C"sv);
EXPECT_EQ(MUST(normalize("\u2126"sv, NormalizationForm::NFKC)), "\u03A9"sv);
EXPECT_EQ(normalize("\u0958"sv, NormalizationForm::NFKC), "\u0915\u093C"sv);
EXPECT_EQ(normalize("\u2126"sv, NormalizationForm::NFKC), "\u03A9"sv);
}

2
Userland/Libraries/LibJS/Runtime/StringPrototype.cpp
View file

@ -666,7 +666,7 @@ JS_DEFINE_NATIVE_FUNCTION(StringPrototype::normalize)
// 6. Let ns be the String value that is the result of normalizing S into the normalization form named by f as specified in https://unicode.org/reports/tr15/.
auto unicode_form = Unicode::normalization_form_from_string(form);
auto ns = TRY_OR_THROW_OOM(vm, Unicode::normalize(string, unicode_form));
auto ns = Unicode::normalize(string, unicode_form);
// 7. Return ns.
return PrimitiveString::create(vm, move(ns));

44
Userland/Libraries/LibUnicode/Normalize.cpp
View file

@ -88,7 +88,7 @@ ALWAYS_INLINE static bool is_hangul_trailing(u32 code_point)
}
// https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf#G56669
static ErrorOr<void> decompose_hangul_code_point(u32 code_point, Vector<u32>& code_points_output)
static void decompose_hangul_code_point(u32 code_point, Vector<u32>& code_points_output)
{
auto const index = code_point - HANGUL_SYLLABLE_BASE;
@ -100,12 +100,10 @@ static ErrorOr<void> decompose_hangul_code_point(u32 code_point, Vector<u32>& co
auto const vowel_part = HANGUL_VOWEL_BASE + vowel_index;
auto const trailing_part = HANGUL_TRAILING_BASE + trailing_index;
TRY(code_points_output.try_append(leading_part));
TRY(code_points_output.try_append(vowel_part));
code_points_output.append(leading_part);
code_points_output.append(vowel_part);
if (trailing_index != 0)
TRY(code_points_output.try_append(trailing_part));
return {};
code_points_output.append(trailing_part);
}
// L, V and LV, T Hangul Syllable Composition
@ -152,7 +150,7 @@ enum class UseCompatibility {
No
};
static ErrorOr<void> decompose_code_point(u32 code_point, Vector<u32>& code_points_output, [[maybe_unused]] UseCompatibility use_compatibility)
static void decompose_code_point(u32 code_point, Vector<u32>& code_points_output, [[maybe_unused]] UseCompatibility use_compatibility)
{
if (is_hangul_code_point(code_point))
return decompose_hangul_code_point(code_point, code_points_output);
@ -161,14 +159,12 @@ static ErrorOr<void> decompose_code_point(u32 code_point, Vector<u32>& code_poin
auto const mapping = Unicode::code_point_decomposition(code_point);
if (mapping.has_value() && (mapping->tag == CompatibilityFormattingTag::Canonical || use_compatibility == UseCompatibility::Yes)) {
for (auto code_point : mapping->decomposition) {
TRY(decompose_code_point(code_point, code_points_output, use_compatibility));
decompose_code_point(code_point, code_points_output, use_compatibility);
}
} else {
TRY(code_points_output.try_append(code_point));
code_points_output.append(code_point);
}
#endif
return {};
}
// This can be any sorting algorithm that maintains order (like std::stable_sort),
@ -251,43 +247,43 @@ static void canonical_composition_algorithm(Vector<u32>& code_points)
}
}
static ErrorOr<Vector<u32>> normalize_nfd(Utf8View string)
static Vector<u32> normalize_nfd(Utf8View string)
{
Vector<u32> result;
for (auto const code_point : string)
TRY(decompose_code_point(code_point, result, UseCompatibility::No));
decompose_code_point(code_point, result, UseCompatibility::No);
canonical_ordering_algorithm(result);
return result;
}
static ErrorOr<Vector<u32>> normalize_nfc(Utf8View string)
static Vector<u32> normalize_nfc(Utf8View string)
{
auto result = TRY(normalize_nfd(string));
auto result = normalize_nfd(string);
canonical_composition_algorithm(result);
return result;
}
static ErrorOr<Vector<u32>> normalize_nfkd(Utf8View string)
static Vector<u32> normalize_nfkd(Utf8View string)
{
Vector<u32> result;
for (auto const code_point : string)
TRY(decompose_code_point(code_point, result, UseCompatibility::Yes));
decompose_code_point(code_point, result, UseCompatibility::Yes);
canonical_ordering_algorithm(result);
return result;
}
static ErrorOr<Vector<u32>> normalize_nfkc(Utf8View string)
static Vector<u32> normalize_nfkc(Utf8View string)
{
auto result = TRY(normalize_nfkd(string));
auto result = normalize_nfkd(string);
canonical_composition_algorithm(result);
return result;
}
static ErrorOr<Vector<u32>> normalize_implementation(Utf8View string, NormalizationForm form)
static Vector<u32> normalize_implementation(Utf8View string, NormalizationForm form)
{
switch (form) {
case NormalizationForm::NFD:
@ -302,15 +298,15 @@ static ErrorOr<Vector<u32>> normalize_implementation(Utf8View string, Normalizat
VERIFY_NOT_REACHED();
}
ErrorOr<String> normalize(StringView string, NormalizationForm form)
String normalize(StringView string, NormalizationForm form)
{
auto const code_points = TRY(normalize_implementation(Utf8View { string }, form));
auto const code_points = normalize_implementation(Utf8View { string }, form);
StringBuilder builder;
for (auto code_point : code_points)
TRY(builder.try_append_code_point(code_point));
builder.append_code_point(code_point);
return builder.to_string();
return MUST(builder.to_string());
}
}

2
Userland/Libraries/LibUnicode/Normalize.h
View file

@ -29,6 +29,6 @@ enum class NormalizationForm {
NormalizationForm normalization_form_from_string(StringView form);
StringView normalization_form_to_string(NormalizationForm form);
ErrorOr<String> normalize(StringView string, NormalizationForm form);
String normalize(StringView string, NormalizationForm form);
}